The MIND diet blends Mediterranean and DASH eating, emphasising leafy greens, berries, nuts, beans, whole grains, fish and olive oil. Cohort studies in 2015 linked close adherence to a 53% lower rate of Alzheimer's disease, but the 2023 randomised trial in NEJM found no significant cognitive benefit over a control diet after three years.
What the MIND diet is
MIND stands for Mediterranean-DASH Intervention for Neurodegenerative Delay. It was created by researchers at Rush University in Chicago, who took two well-studied eating patterns, the Mediterranean diet and the DASH diet for blood pressure, and reshaped them around foods that earlier studies had linked to better brain ageing.
The result is a scoring system rather than a menu. In the original 2015 papers, the MIND score had 15 components: 10 "brain healthy" food groups and 5 food groups to limit (Morris and colleagues, Alzheimer's & Dementia 2015). Compared with its parent diets, MIND specifically counts berries and green leafy vegetables, and it does not ask for high fruit, high dairy, high potato or frequent fish intake.
That design choice matters for how you read the evidence. MIND was built from observational data, then tested against observational data, and only later put through a randomised trial. As we will see, those two kinds of evidence point in different directions.
What foods are on the MIND diet?
These are the targets used in the 2015 MIND score. Each component scores up to one point, giving a maximum of 15.
| Food group | MIND target | Type |
|---|---|---|
| Green leafy vegetables | 6 or more servings a week | Eat more |
| Other vegetables | 1 or more a day | Eat more |
| Berries | 2 or more servings a week | Eat more |
| Nuts | 5 or more servings a week | Eat more |
| Beans | More than 3 servings a week | Eat more |
| Whole grains | 3 or more a day | Eat more |
| Fish | 1 or more meal a week | Eat more |
| Poultry | 2 or more meals a week | Eat more |
| Olive oil | Main oil used at home | Eat more |
| Wine | 1 glass a day in the original score | Contested; see below |
| Red meat and products | Fewer than 4 servings a week | Limit |
| Butter and stick margarine | Less than 1 tablespoon a day | Limit |
| Cheese | Less than 1 serving a week | Limit |
| Pastries and sweets | Fewer than 5 a week | Limit |
| Fried or fast food | Less than 1 a week | Limit |
What about the wine?
The original MIND score gave a point for about one glass of wine a day, reflecting older observational findings. Current public health advice has moved away from encouraging alcohol for health. The World Health Organization's updated dementia guidelines, published in July 2026, recommend reducing alcohol consumption to lower risk (WHO, 2026). The NHS advises men and women not to drink more than 14 units a week on a regular basis, and notes that the evidence for a protective effect from moderate drinking is now thought to be less strong than previously believed (NHS, alcohol advice). If you do not drink, there is no reason to start for the sake of a diet score, and the 2023 MIND trial did not list wine among the foods it supplied.
The observational evidence: why MIND became famous
MIND came to public attention through two 2015 analyses from the Rush Memory and Aging Project, a long-running study of older adults in the Chicago area.
Slower cognitive decline
The first followed 960 participants for an average of 4.7 years (Morris and colleagues, Alzheimer's & Dementia 2015). People with higher MIND scores declined more slowly on cognitive tests. The difference between the top and bottom thirds of MIND scores was equivalent to being 7.5 years younger in age. The authors were clear about the limits: "replication of these findings in a dietary intervention trial would be required to verify its relevance to brain health".
Lower rates of Alzheimer's disease
The second analysis followed 923 participants aged 58 to 98 for an average of 4.5 years. Compared with the lowest third of MIND scores, the highest third had a 53% lower rate of Alzheimer's disease (hazard ratio 0.47), and the middle third a 35% lower rate (hazard ratio 0.65). High adherence to the Mediterranean and DASH diets was also linked to lower rates, but only MIND showed an association at moderate adherence. That finding, that you might not need to follow the diet perfectly, became a central part of MIND's appeal.
Why caution is needed
These were associations in a single cohort, measured with food frequency questionnaires. People who eat more leafy greens, nuts and fish tend to differ in many other ways: education, income, physical activity, smoking and access to healthcare. Statistical adjustment reduces but cannot remove that confounding. Observational studies like these generate hypotheses. The next step was to test it.
The 2023 MIND trial: a null result
In 2023 the New England Journal of Medicine published the first large randomised controlled trial of the MIND diet (Barnes and colleagues, NEJM 2023). It was funded by the US National Institute on Aging and run at two sites.
Who took part, and what they did
- Participants: 604 older adults without cognitive impairment who had a family history of dementia, a body mass index above 25 and a suboptimal diet at the start.
- Groups: 301 were assigned to the MIND diet and 303 to a control diet, for three years. Both groups were asked to cut about 250 kcal a day for mild weight loss and received counselling and support.
- Support: the MIND group received regular supplies of blueberries, mixed nuts and extra virgin olive oil. The control group received gift cards of similar frequency.
- Retention: 93.4% of participants completed the trial.
What it found
Both groups improved on the global cognition score over three years: by 0.205 standardised units in the MIND group and 0.170 in the control group. The difference of 0.035 units was not statistically significant (95% confidence interval −0.022 to 0.092). Brain MRI measures, including white-matter changes and hippocampal volume, were also similar in both groups. Both groups lost about 5 kg on average: 5.0 kg in the MIND group and 4.8 kg in the control group.
The authors concluded that changes in cognition and brain MRI outcomes "did not differ significantly" between the two diets.
How to interpret the null result
A null trial does not prove that diet is irrelevant to brain health. Several features of this one make it hard to generalise in either direction:
- The control group also changed. Both groups received dietary counselling, support and mild calorie restriction, and both lost weight. The trial compared MIND with another supported healthy-change programme, not with doing nothing.
- Three years may be short. Dementia develops over decades. Participants were cognitively healthy at the start, and both groups improved, possibly partly through practice on repeated tests.
- The population was specific. Participants had a family history of dementia, were mostly overweight and started with poor diets. The results may not apply to people with different risks.
Still, it would be misleading to describe MIND as proven to prevent dementia. The best trial to date did not show that it beats a general, supported healthy diet with weight loss.
Be wary of any product, programme or book that claims a diet will "prevent" or "reverse" dementia or Alzheimer's disease. No diet has been shown in randomised trials to do that. Memory problems that are new or getting worse need assessment by a GP. The NHS notes they can have other causes, such as depression and anxiety, delirium from an infection, an underactive thyroid or side effects of some medicines (NHS, dementia diagnosis).
Does the MIND diet prevent dementia?
On current evidence, no one can promise that. The honest summary is:
- Observational studies: people whose diets most resemble MIND have lower rates of cognitive decline and Alzheimer's disease.
- Randomised trial: in the one large trial, MIND did not improve cognition more than a control diet with similar weight loss over three years.
- Public health guidance: WHO's July 2026 update says that "up to 45% of the risks can be attributed to modifiable risk factors", including tobacco, alcohol, social isolation, physical inactivity, air pollution and noncommunicable diseases. It recommends adopting a healthy diet as part of reducing the risk of those diseases, and does not single out a named diet.
So the reasonable position is that MIND is a healthy, plant-forward pattern that fits well with heart, blood pressure and diabetes advice, all of which matter for the brain too. It is a sensible way to eat. It is not a dementia treatment.
What about supplements for memory?
The supplement aisle is full of products sold for memory and "brain health". WHO's updated guidelines advise against taking B vitamins and vitamin E to reduce dementia risk, and also against omega-3 fatty acids and multivitamin or mineral supplements, unless a deficiency has been diagnosed. That last condition matters: a genuine deficiency, for example of vitamin B12, should be treated, and our guide to B12 deficiency explains who is at risk and how it is tested. Our article on omega-3 supplements covers what fish oil does and does not do.
How strict does the MIND diet really need to be?
Not very, and that is one of its genuine strengths. The 2015 cohort data suggested a benefit at moderate adherence, and the diet allows red meat, cheese and sweets in limited amounts rather than banning them. Even taking the trial result into account, the foods MIND emphasises are ones most dietary guidelines already recommend.
A practical way to use MIND:
- Add leafy greens most days. A handful of spinach, kale, rocket or cabbage in soups, curries, omelettes or salads.
- Have berries twice a week. Frozen berries are cheaper and work just as well in porridge or yoghurt.
- Snack on nuts five times a week. A small handful, unsalted.
- Eat beans or lentils three or four times a week. In stews, salads or on toast.
- Choose whole grains three times a day. Oats, wholemeal bread, brown rice, wholewheat pasta.
- Fish once a week, poultry twice.
- Cook with olive oil instead of butter.
- Keep cheese, pastries, fried food and red meat as occasional foods.
Because MIND overlaps with the DASH diet, many people who follow it also cut salt, which helps blood pressure. Our guide to the low-sodium diet shows where hidden salt comes from. To see how your current eating compares with a healthy pattern, try our free healthy eating check.
Generic diet sheets or an individual plan from a dietitian?
A one-page MIND checklist is a good prompt, but it is written for a healthy, independent adult. Many of the people most interested in brain health are older, and some live with conditions that change what a good diet looks like:
- Kidney disease may limit potassium-rich foods, beans and nuts.
- Heart failure or high blood pressure may need tighter salt and fluid plans.
- Diabetes needs carbohydrate spread across the day.
- Swallowing difficulties may rule out nuts and require softer textures.
- Low appetite or unplanned weight loss means that eating enough matters more than eating "perfectly". In the trial, both groups were asked to lose weight, which would be wrong advice for a frail older person. For a younger adult with overweight, by contrast, planned weight loss with a dietitian for weight loss can sit comfortably alongside MIND-style eating.
A registered dietitian can turn the MIND principles into a plan that fits your health, medicines, culture, budget and cooking. If unplanned weight loss is the concern, our guide to weight loss in the elderly explains why it needs attention. In the UK, our United Kingdom country guide explains how to check that a dietitian is registered.
Book a session with a dietitian
What should people with dementia eat?
Once dementia has developed, the priorities change. The question is no longer which diet might reduce risk, but how to keep the person eating and drinking enough, safely and with dignity. NICE guidance for England advises encouraging and supporting people living with dementia to eat and drink, "taking into account their nutritional needs", and involving a speech and language therapist if there are concerns about safety when eating and drinking (NICE NG97).
Common problems
The UK charity Alzheimer's Society describes several common difficulties (Alzheimer's Society, eating and drinking):
- meals may be skipped even when the person is hungry;
- taste and smell often change, so people may want more sugar, salt or spice, or eat a narrower range of foods;
- coordination problems can make cutlery hard to use;
- dehydration is common, and swallowing difficulties can contribute to weight loss, malnutrition and dehydration.
Practical strategies
- Offer finger foods. Alzheimer's Society notes they "may help someone who has coordination difficulties".
- Use contrast. Choose plain, contrasting colours for the food, plate and table, so the food stands out.
- Make drinks easy. Offer drinks often, in a cup the person can manage, and cool hot drinks with cold water, as the person may not judge temperature well.
- Sit upright and fully awake before offering food and drink, and keep up mouth care and well-fitting dentures.
- Use the sweet tooth. If a preference for sweet foods develops, nourishing options such as yoghurt, custard, fruit and milky puddings can help keep energy and protein up.
- Ask for specialist help. A speech and language therapist can assess swallowing, and a dietitian can check that softer or pureed food is still nutritious. Our guide to pureed and texture-modified meals explains the textures in more detail.
Tube feeding in severe dementia
This is one of the hardest decisions families face. NICE advises: "Do not routinely use enteral feeding in people living with severe dementia, unless indicated for a potentially reversible comorbidity." NICE has produced a patient decision aid for families and professionals. These decisions should be made with the care team, taking account of the person's wishes and best interests.
Frequently asked questions
What foods are on the MIND diet?
The MIND diet emphasises 10 food groups: green leafy vegetables, other vegetables, berries, nuts, beans, whole grains, fish, poultry, olive oil and, in the original score, wine. It limits 5: red meat, butter and stick margarine, cheese, pastries and sweets, and fried or fast food. Targets include six servings of leafy greens and two of berries a week.
Does the MIND diet prevent dementia?
It has not been shown to. 2015 cohort studies linked high MIND scores to a 53% lower rate of Alzheimer's disease, but the 2023 randomised trial of 604 older adults found no significant difference in cognition or brain scans compared with a control diet after three years. It remains a healthy eating pattern, not a proven prevention.
What should people with dementia eat?
The priority is eating and drinking enough, safely. Offer regular meals and snacks, finger foods if cutlery is hard, plenty of drinks, and nourishing foods the person enjoys, including sweet options if tastes change. NICE advises involving a speech and language therapist if swallowing is a concern, and a dietitian can help if weight is falling.
What did the 2023 MIND diet trial find?
The trial followed 604 cognitively healthy adults with a family history of dementia for three years. Both the MIND group and the control group, who also had mild calorie restriction, improved on cognitive tests and lost about 5 kg. The difference in global cognition, 0.035 standardised units, was not statistically significant, and MRI measures were similar.
Is the MIND diet the same as the Mediterranean diet?
No, but it is closely related. MIND combines parts of the Mediterranean and DASH diets and adds specific targets for berries and green leafy vegetables. Unlike them, it does not ask for high fruit, high dairy or frequent fish intake. All three emphasise plant foods and limit saturated fat and sweets.
Do supplements help prevent dementia?
WHO's updated 2026 guidelines advise against taking B vitamins, vitamin E, omega-3 fatty acids or multivitamin and mineral supplements to reduce dementia risk, unless a deficiency has been diagnosed. A real deficiency, such as low vitamin B12, should be treated. For everyone else, a healthy diet, activity and managing blood pressure and diabetes matter more.
Should someone with dementia follow the MIND diet?
Not necessarily. Once dementia has developed, eating enough food and fluid safely becomes more important than following any particular pattern. Restricting cheese, sweets or red meat could reduce intake in someone with a poor appetite. A dietitian can balance healthy choices with the person's preferences, weight and swallowing needs.
